Source 1: https://www.freepik.com/premium-vector/hand-drawing-vintage-caduceus-illustration_9143152.htm

Caduceus; Published by Wikipedia The Free Encyclopedia; Date last updated: April 18, 2021; Date of website access: July 9, 2021.

Source 2: https://www.mtpr.org/post/governor-bans-use-vaccine-passports-montana

Governor Bans Use Of Vaccine Passports In Montana; Associated Press; Montana Public Radio; Published by Iris Samuels; Date published: April 13, 2021; Date of website access: July 9, 2021.

Source 3: https://youtu.be/4qyzb3CyL2g

Donald J Trump is symbolically portrayed in the animation I pet, goat II; Published by Joalan Pinto; YouTube; Date published: January 28, 2021; Date of website access: July 9, 2021.

Source 4: https://www.famfootcare.com/about/

MEET THE DOCTOR; Meet Dr. Tobi F. Todd; Atlanta Family Foot Care; Website by DOCTOR Multimedia; Date published: unknown; Date of website access: July 9, 2021.

Source 5: https://theindependent.sg/testing-snag-keeps-2-who-china-probe-experts-in-singapore/

Testing snag keeps 2 WHO China probe experts in Singapore; Published by the Independent News & Media; Singapore Edition; WHO-Wikipedia Edition; Date published: January 14, 2021; Date of website access: July 9, 2021.

(Thumbnail) — Source 6: https://youtu.be/Id6nCa_OTEM

I, pet goat II; Published by HeliofantChannel; YouTube; Date published: July 3, 2012; Date of website access: July 9, 2021.